//
//  Duck.h
//  delegate
//
//  Created by 李广帅 on 2018/3/20.
//  Copyright © 2018年 天蓬大元. All rights reserved.
//

#import <Foundation/Foundation.h>

#import "FlyBehavior.h"
#import "QuackBehavior.h"

@interface Duck : NSObject

@property (nonatomic,weak) id <FlyBehavior> deletageForFly;
@property (nonatomic,weak) id <QuackBehavior> deletageForQuack;

- (void)swim;

- (void)performQuack;

- (void)performFly;

@end
